Maintaining Large, Mature Dieffenbachia for Long-Term Health

The Leggy Problem

Dieffenbachia naturally drops lower leaves, becoming a bare-stemmed "umbrella." Two solutions:

1. Air layer or cuttings to start new plants.
2. Hard prune: Cut to 6 inches above soil; it resprouts multi-stemmed and full.

Ongoing Care

• Repotting: Likes being root-bound. Repot when roots push plant up; use free-draining mix.
• Fertilizer: Half-strength liquid bimonthly in spring/summer.
• Water: Underwater rather than overwater; less in winter.
• Light: Bright, diffused; no direct sun. Summer outdoors in protected shade helps.
• No drafts/heat vents (cause browning).
• Misting: Benefits questionable—not necessary.
• Pests: Watch for aphids.
• Toxicity: Sap causes speech loss if on vocal cords—wear gloves.

Staking

May be needed for top-heavy plants.